Update the expectations of the issue #3644 test, to assume the patch is applied
ok. Verify the final result.

* subversion/svn/notify.c
  (notify): Don't show an offset when patching the empty file.

* subversion/tests/cmdline/patch_tests.py
  (patch_empty_file): Remove XFail marker. Expect applied hunk. Verify disk.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1436592 13f79535-47bb-0310-9956-ffa450edef68